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diff --git a/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt new file mode 100644 index 000000000000..21b9a897fca5 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt @@ -0,0 +1,40 @@ +Spreadtrum SC27xx Power Management Integrated Circuit (PMIC) + +The Spreadtrum SC27xx series PMICs contain SC2720, SC2721, SC2723, SC2730 +and SC2731. The Spreadtrum PMIC belonging to SC27xx series integrates all +mobile handset power management, audio codec, battery management and user +interface support function in a single chip. It has 6 major functional +blocks: +- DCDCs to support CPU, memory. +- LDOs to support both internal and external requirement. +- Battery management system, such as charger, fuel gauge. +- Audio codec. +- User interface function, such as indicator, flash LED and so on. +- IC level interface, such as power on/off control, RTC and typec and so on. + +Required properties: +- compatible: Should be one of the following: + "sprd,sc2720" + "sprd,sc2721" + "sprd,sc2723" + "sprd,sc2730" + "sprd,sc2731" +- reg: The address of the device chip select, should be 0. +- spi-max-frequency: Typically set to 26000000. +- interrupts: The interrupt line the device is connected to. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: The number of cells to describe an PMIC IRQ, must be 2. +- #address-cells: Child device offset number of cells, must be 1. +- #size-cells: Child device size number of cells, must be 0. + +Example: +pmic@0 { + compatible = "sprd,sc2731"; + reg = <0>; + spi-max-frequency = <26000000>; + interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <2>; + #address-cells = <1>; + #size-cells = <0>; +}; |